class_docstr: Base class for high-level JAX sparse objects.
code: def block_until_ready(self):
      for arg in self.tree_flatten()[0]:
          arg.block_until_ready()
      return self
  
imports: import abc
  from collections.abc import Sequence
  import math
  import jax
  from jax._src import core
  from jax._src.typing import Array
label_desc: Use image node_id 10 for calling the JAXSparse obj's underlying member method code with example usage: obj.block_until_ready() and returns: self